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NEET UG CHEMISTRY MCQ: THERMODYNAMICS
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A system absorbs 10 kJ of heat and does 4 kJ of work. The internal energy of the system
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Correct option: B
Increases by 6 kJ
Option B (Increases by 6 kJ) is correct because, according to the first law of thermodynamics, the internal energy increases by the difference between the heat absorbed and the work done by the system.
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Reason :- During phase transition work done is always negative. For the reaction, at . Hence, is